Heating apparatus and process for drawing polyolefin fibers
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United States of America Patent
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May 13, 2008
Grant Date -
Jun 21, 2007
app pub date -
Nov 1, 2006
filing date -
Dec 20, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A heating apparatus and process useful for drawing ultrahigh molecular weight polyolefin fibers, such as polyethylene fibers. The heating apparatus includes a first set of rolls and a plurality of aligned ovens. The apparatus includes a second set of rolls at the exit of the ovens which rolls are adapted to provide the desired drawing of the polyolefin fibers. The apparatus and process provide a single draw step in a heated environment, with the use of preferably four or six horizontal ovens.
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